Quinidine Gluconate from China
Quinidine gluconate is the gluconic acid salt of quinidine, a cinchona alkaloid used for treating cardiac arrhythmias. Classified under HTS 2939.20.0050 as a salt derivative of cinchona alkaloids. This form enhances solubility for pharmaceutical applications.
Duty Rate — China → United States
100%
Rate breakdown
9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.860%Universal product exemption (U.S. note 52(b))
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Provide pharmacopeial compliance certificates (USP/EP) verifying identity and potency
• Declare exact salt form and counterion ratio to avoid reclassification as base alkaloid
• Monitor for chiral purity documentation as optical isomers may affect therapeutic classification